Means for tensioning hair



May 2, 1939. R. w. FLINN MEANS FOR TENSIONING HAIR Filed July 10, 19-37 ROLAND W. FL/NN. BY aagL f TTORNEYS.

INVENTORT 25 In the drawing: ally, the cross-section in the center of the bobbin 25 Patented May 2, 1939 v I V I UNITED STATES PATENT OFFICE 2,156,808 MEANS FOR TENSIONING HAIR Roland w. Flinn, Oakland, Calif.

Application July 10, 1937, Serial No. 152,987

1 Claim. (Cl. 132-33) My invention relates to a means for tensionextent upon the tension placed upon the hair ing hair, and more particularly to a means for before the heating takes place, and I have also placing human hair under tension preliminary to found that it is not possible to obtain maximum the heat treatment thereof to produce what are tension by rotating the bobbin against the hold 5 commonly known as permanent waves therein. of the clamp, because the more tension that is 5 Among the objects of my invention are: To applied to the'clamp the greater chance there provide a means fortensioning human hair withis for hair to slip in the clamp and pull on the out pulling on the scalp; to provide a means for scalp, and even the use of the clamp itself tends tensioning hair without the clamping thereof to pull the hair if any great amount of hair is adjacent the scalp; to provide a means for imincludedin the lock. 1o parting a radial stress of any intensity desired My invention, therefore, is directed toward a to coil hair; and to provide a simple and efilmeans for applying tension to the hair without cient means for coiling and tensioning hair, any pull either against a clamp or against the preparatory to the heat treatment thereof to scalp. This means may be more fully understood l5 produce a wave therein. by direct reference to the drawing.

My invention possesses numerous other ob- Here, a bobbin is provided comprising identical jects and features o advantage, some of which, halves l .and 2. These half bobbins fit around together with the foregoing, will be set forth in a central axle 3. However, the central axle, as

, thev following description of specific apparatus shown in Figure 2, is of oval cross-section, and.

embodying my invention. It is therefore to be the central channels in the halves I and 2 are 20 understood that I do not limit myself, in any of similar contour, so that when the axle 3 way, to the apparatus of the present application, properly fits the channels the halves contact each as I may adopt various other apparatus embodiother to form the equivalent of a solid mandrel ments within the scope of the appended claim. member upon which hair may be wound. Usu- Figure l is a side view of the hair bobbin of is slightly smaller than at the outer edges. Each my invention having a lock of hair wound thereend of the halves is provided with half ratchet on, the bobbin holder being shown diagramgears 4, normally registering to form a complete matically inasmuch as it is no part of the presratchet gear. The two halves are held together ent invention. about the axle by a hair clip 5 attached to each 30 Figure 2 is a cross-sectional view taken as inhalf by pins 6. dicated by the line 22 of Figure Land In operation, the end of a lock of hair I is Figure 3 is a view similar to Figure 2 showing tucked under the hair clip 5 and the hair wound how the hair is placed under a radial tension. loosely around the bobbin, no particular pains In creating permanent waves in human hair being taken to have it tightly wound thereon. 35 it is customary for the hair to be wound upon As the bobbin approaches the scalp it is then a solid bobbin and then placed in a holder which dropped into bearings 9 on each end of a holder rests on the scalp. As the hair is wound on the H), which may, if desired, be in two parts; these bobbin the bobbin naturally approaches closer two parts however do not need to approach each 40 and closer to the holder, which in most cases is other to form any clamp on the hair adjacent the 40 split to form a clamp tightly gripping the hair scalp but merely provide a means for spacing the adjacent the scalp. As the twisting of the bobbobbin from the scalp, a support for the bobbin bin continues the bobbin drops into. bearings on and also a barrier to prevent excessive heat from the holder, the holder having a ratchet mounted reaching the scalp. After the bobbin is posi- 5 thereon engaging teeth on the bobbin to prevent tioned in the bearings 9 it is maintained from unthe bobbin from unwinding. A key is then used Windin y r h L to tension the hair by turning the bobbin against p t the pr s nt time no pp ia tension the hair-hold of the clamp. At some time durhas be n pla d up th ha r and th roll d ing this procedure pads wet with various waving lock is ready fo tensioning- A key l2 is pp solutions are positioned around the coiled lock,v to the key end I4 of the axle 3 and the axle is 50 and after the tension has been applied these rotated one-quar r turn, t y (Sam action cloths are heated in one manner or another to forcibly Separating t W halves of e b set the hair while under tension and while coiled. The bobbin is thus expanded and circumferen- I have found that the length of time such a tially enlarged, thereby placing a. heavy tension wave will remain in the hair depends to a large thereon. It is obvious that by changing the 56 cumming contour of the interior axle, greater or less tension may be applied to the hair, as deout any pull whatsoever upon the scalp of the person whose hair is being waved.

It should be distinctly understood that my bobbin may be used if desired with other prior art holders where the hair is clamped, but that such clamping does not affect the operation of my expanding bobbin in any way, nor is it necessary to utilize the clamping effect in any manner to exercise my, invention.

It is also obvious that I do not wish to be limited to the exact type of expanding bobbin illustrated and described herein merely as an example of my invention within the scope of the appended claim.

I claim:

A hair waving bobbin comprising a pair of segments cooperating to form a mandrel member of substantially circular cross-section upon which hair may be wound, each of said sections having a central channel therein of elliptical contour, and a longitudinal cam member fitting in said channel and of such a cross-section as to force said segments apart when rotated, said cam being restrained from longitudinal movement.

ROLAND W. FLINN. '2 

